hi guys?
i have got a sony mz-r70 and the core sound low cost binaurals with low sensivity option.
i am going to tape a heavy metal concert (loud ^^) in some days.
so, as you know the sony md recorder has got a manual record level option from 1-30.
i will plug the mic into the mic-in, what do you think is the correct mic-level when i stand in row #1 and the place to be is a mid-sized music-hall?
Stick the mics in your mouth and hum as loud as you can. (Yes, really.) If you record that and it hits the rails, you are set too hot on your levels and need to back off. That's about the same sound pressure level that you'll get at a loud metal show. I'm betting that you need to be about 16 to 18 on the levels. The MZ-R37 is what I learned on and I think that your model has the same sensitivity settings.
do you recommend that setting without a battery box?
Don't do it without a battery box. It will be wasted time if you do.
hm ok, i ask explicitly for the need of a battery box, because len moskowit from core sound told me via e-mail that the low cost binuarals with low sensivity function should be plugged directly into the sony's mz-r70 mic-in.
Well, do the hum test then. Don't take my word for it. Stick the mics in your mouth, hum as loud as you can and experiment with the levels. My bet is that you can't find a level that doesn't sound like it has clipping distortion unless you don't hum as loud.
If that doesn't convince you, then turn your stereo up way loud and do the same thing. Be sure to get it up as loud as the show you're going to try to record. That can be hard to do. I still bet that the recording will sound distorted as compared to what it sounded like in the rooom when you recorded it, no matter what record level you use. That's because your mics are going to overload. Len's low sensitivity mod helps a lot, but it does not completely cure the problem of clipping the signal inside the mic capsules when you only have 1 1/2 Volts of bias voltage for the capsules. His mod is mainly designed to prevent overloading the mic amp in your recorder. In my opinion, there really is no substitute for a battery box. The electret mic capsules used in the cheap mics simply need more bias voltage than your minidisc recorder supplies if you're going to record loud shows.
Again, don't take my word for it. Do the tests. Learn your equipment. You'll get better results sooner if you do.